Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-05-21 21:29:15 +03:00
Code Issues Actions 3 Packages Projects Releases Wiki Activity

SNES: Added emulation for the DSP-3 and DSP-4 add-on chips, based on latest ZSNES [ZSNES Team, Fabio Priuli]

Browse Source 
out of the whatsnew, I hope the way I worded the license exception (at the top of the files) is fine to avoid any issue
This commit is contained in:
Fabio Priuli 2009-09-09 17:14:42 +00:00
parent 740ae26ae6
commit 2bc4056946
6 changed files with 3472 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
.gitattributes vendored
View File

@ -2881,6 +2881,9 @@ src/mame/machine/slikshot.c svneol=native#text/plain
src/mame/machine/snes.c svneol=native#text/plain
src/mame/machine/snesdsp1.c svneol=native#text/plain
src/mame/machine/snesdsp2.c svneol=native#text/plain
src/mame/machine/snesdsp3.c svneol=native#text/plain
src/mame/machine/snesdsp4.c svneol=native#text/plain
src/mame/machine/snesdsp4.h svneol=native#text/plain
src/mame/machine/snesobc1.c svneol=native#text/plain
src/mame/machine/snesrtc.c svneol=native#text/plain
src/mame/machine/snessdd1.c svneol=native#text/plain

30
src/mame/machine/snes.c
View File

@ -58,6 +58,8 @@ static struct
// add-on chip emulators
#include "machine/snesdsp1.c"
#include "machine/snesdsp2.c"
#include "machine/snesdsp3.c"
#include "machine/snesdsp4.c"
#include "machine/snesobc1.c"
#include "machine/snesrtc.c"
#include "machine/snessdd1.c"
@ -1475,6 +1477,8 @@ READ8_HANDLER( snes_r_bank1 )
value = (address < 0xc000) ? DSP1_getDr() : DSP1_getSr();
else if ((snes_cart.mode == SNES_MODE_20) && (snes_has_addon_chip == HAS_DSP2) && (offset >= 0x200000))
value = (address < 0xc000) ? DSP2_read() : 0x00;
else if ((snes_has_addon_chip == HAS_DSP3) && (offset >= 0x200000))
value = DSP3_read(address);
else
value = snes_ram[offset];
@ -1514,6 +1518,10 @@ READ8_HANDLER( snes_r_bank2 )
value = (address < 0xc000) ? DSP1_getDr() : DSP1_getSr();
else if ((snes_cart.mode == SNES_MODE_20) && (snes_has_addon_chip == HAS_DSP2))
value = (address < 0xc000) ? DSP2_read() : 0x00;
else if (snes_has_addon_chip == HAS_DSP3)
value = DSP3_read(address);
else if (snes_has_addon_chip == HAS_DSP4)
value = (address < 0xc000) ? DSP4_read() : 0x80;
else
value = snes_ram[0x300000 + offset];
@ -1637,6 +1645,10 @@ READ8_HANDLER( snes_r_bank6 )
value = (address < 0xc000) ? DSP1_getDr() : DSP1_getSr();
else if ((snes_cart.mode == SNES_MODE_20) && (snes_has_addon_chip == HAS_DSP2) && (offset >= 0x200000))
value = (address < 0xc000) ? DSP2_read() : 0x00;
else if ((snes_has_addon_chip == HAS_DSP3) && (offset >= 0x200000))
value = DSP3_read(address);
else if ((snes_has_addon_chip == HAS_DSP4) && (offset >= 0x300000))
value = (address < 0xc000) ? DSP4_read() : 0x80;
else
value = snes_ram[0x800000 + offset];
@ -1699,6 +1711,8 @@ WRITE8_HANDLER( snes_w_bank1 )
DSP1_setDr(data);
else if ((snes_cart.mode == SNES_MODE_20) && (snes_has_addon_chip == HAS_DSP2) && (offset >= 0x200000) && (address < 0xc000))
DSP2_write(data);
else if ((snes_has_addon_chip == HAS_DSP3) && (offset >= 0x200000))
DSP3_write(address, data);
else
logerror( "Attempt to write to ROM address: %X\n", offset );
}
@ -1733,6 +1747,10 @@ WRITE8_HANDLER( snes_w_bank2 )
DSP1_setDr(data);
else if ((snes_cart.mode == SNES_MODE_20) && (snes_has_addon_chip == HAS_DSP2) && (address < 0xc000))
DSP2_write(data);
else if (snes_has_addon_chip == HAS_DSP3)
DSP3_write(address, data);
else if ((snes_has_addon_chip == HAS_DSP4) && (address < 0xc000))
DSP4_write(data);
else
logerror("Attempt to write to ROM address: %X\n", offset + 0x300000);
}
@ -1837,6 +1855,10 @@ WRITE8_HANDLER( snes_w_bank6 )
DSP1_setDr(data);
else if ((snes_cart.mode == SNES_MODE_20) && (snes_has_addon_chip == HAS_DSP2) && (offset >= 0x200000) && (address < 0xc000))
DSP2_write(data);
else if ((snes_has_addon_chip == HAS_DSP3) && (offset >= 0x200000))
DSP3_write(address, data);
else if ((snes_has_addon_chip == HAS_DSP4) && (offset >= 0x300000) && (address < 0xc000))
DSP4_write(data);
else if (snes_has_addon_chip == HAS_SUPERFX && cputag_get_cpu(space->machine, "superfx") != NULL)
logerror( "snes_w_bank6 hit (ROM) in Super FX mode, please fix me\n" );
else
@ -1957,6 +1979,14 @@ static void snes_init_ram(running_machine *machine)
DSP2_reset();
break;
case HAS_DSP3:
InitDSP3();
break;
case HAS_DSP4:
InitDSP4();
break;
case HAS_OBC1:
obc1_init();
break;

1154
src/mame/machine/snesdsp3.c Normal file
View File

File diff suppressed because it is too large Load Diff

2179
src/mame/machine/snesdsp4.c Normal file
View File

File diff suppressed because it is too large Load Diff

104
src/mame/machine/snesdsp4.h Normal file
View File

@ -0,0 +1,104 @@
#ifndef SNESDSP4_H
#define SNESDSP4_H
#define FALSE 0
#define TRUE 1
struct DSP4_t
{
UINT8 waiting4command;
UINT8 half_command;
UINT16 command;
UINT32 in_count;
UINT32 in_index;
UINT32 out_count;
UINT32 out_index;
UINT8 parameters[512];
UINT8 output[512];
};
extern struct DSP4_t DSP4;
struct DSP4_vars_t
{
// op control
INT8 DSP4_Logic; // controls op flow
// projection format
INT16 lcv; // loop-control variable
INT16 distance; // z-position INTo virtual world
INT16 raster; // current raster line
INT16 segments; // number of raster lines drawn
// 1.15.16 or 1.15.0 [sign, INTeger, fraction]
INT32 world_x; // line of x-projection in world
INT32 world_y; // line of y-projection in world
INT32 world_dx; // projection line x-delta
INT32 world_dy; // projection line y-delta
INT16 world_ddx; // x-delta increment
INT16 world_ddy; // y-delta increment
INT32 world_xenv; // world x-shaping factor
INT16 world_yofs; // world y-vertical scroll
INT16 view_x1; // current viewer-x
INT16 view_y1; // current viewer-y
INT16 view_x2; // future viewer-x
INT16 view_y2; // future viewer-y
INT16 view_dx; // view x-delta factor
INT16 view_dy; // view y-delta factor
INT16 view_xofs1; // current viewer x-vertical scroll
INT16 view_yofs1; // current viewer y-vertical scroll
INT16 view_xofs2; // future viewer x-vertical scroll
INT16 view_yofs2; // future viewer y-vertical scroll
INT16 view_yofsenv; // y-scroll shaping factor
INT16 view_turnoff_x; // road turnoff data
INT16 view_turnoff_dx; // road turnoff delta factor
// drawing area
INT16 viewport_cx; // x-center of viewport window
INT16 viewport_cy; // y-center of render window
INT16 viewport_left; // x-left of viewport
INT16 viewport_right; // x-right of viewport
INT16 viewport_top; // y-top of viewport
INT16 viewport_bottom; // y-bottom of viewport
// sprite structure
INT16 sprite_x; // projected x-pos of sprite
INT16 sprite_y; // projected y-pos of sprite
INT16 sprite_attr; // obj attributes
UINT8 sprite_size; // sprite size: 8x8 or 16x16
INT16 sprite_clipy; // visible line to clip pixels off
INT16 sprite_count;
// generic projection variables designed for
// two solid polygons + two polygon sides
INT16 poly_clipLf[2][2]; // left clip boundary
INT16 poly_clipRt[2][2]; // right clip boundary
INT16 poly_ptr[2][2]; // HDMA structure poINTers
INT16 poly_raster[2][2]; // current raster line below horizon
INT16 poly_top[2][2]; // top clip boundary
INT16 poly_bottom[2][2]; // bottom clip boundary
INT16 poly_cx[2][2]; // center for left/right poINTs
INT16 poly_start[2]; // current projection poINTs
INT16 poly_plane[2]; // previous z-plane distance
// OAM
INT16 OAM_attr[16]; // OAM (size,MSB) data
INT16 OAM_index; // index INTo OAM table
INT16 OAM_bits; // offset INTo OAM table
INT16 OAM_RowMax; // maximum number of tiles per 8 aligned pixels (row)
INT16 OAM_Row[32]; // current number of tiles per row
};
extern struct DSP4_vars_t DSP4_vars;
#endif

2
src/mame/mame.mak
View File

@ -1849,6 +1849,8 @@ $(DRIVERS)/mpu4.o: $(MAMESRC)/drivers/mpu4drvr.c
$(DRIVERS)/neogeo.o: $(MAMESRC)/drivers/neodrvr.c
$(MACHINE)/snes.o: $(MAMESRC)/machine/snesdsp1.c \
$(MAMESRC)/machine/snesdsp2.c \
$(MAMESRC)/machine/snesdsp3.c \
$(MAMESRC)/machine/snesdsp4.c \
$(MAMESRC)/machine/snesobc1.c \
$(MAMESRC)/machine/snesrtc.c \
$(MAMESRC)/machine/snessdd1.c